McLeod RST HD Twin Disc Clutch Kit with Steel Flywheel (6471207MD) - Mazda 13B & 20B Rotary
Built for high-powered rotary engine applications, the McLeod RST HD Twin Disc Clutch Kit delivers exceptional holding power while maintaining excellent street manners. Designed for enthusiasts pushing the limits of their Mazda 13B or 20B-powered builds, the RST HD bridges the gap between McLeod's legendary RST and RXT clutch systems. Rated to support up to 950 horsepower, this clutch provides outstanding torque capacity, smooth engagement, and reliable performance for street, drag racing, and road course applications.
The RST HD utilizes McLeod's advanced hybrid twin-disc design, pairing smooth-engaging organic friction material on one side of each disc with high-bite segmented ceramic material on the other. This unique combination delivers increased torque-holding capability while maintaining light pedal effort and minimizing drivetrain shock. Combined with a durable billet steel flywheel, this complete clutch kit offers exceptional heat resistance, long service life, and consistent performance for demanding rotary engine builds using aftermarket transmissions.
Features
- Designed for Mazda 13B and 20B rotary engine applications
- Compatible with aftermarket transmissions
- Rated to support up to 950 horsepower
- Twin-disc clutch design for increased torque capacity and superior heat management
- Hybrid organic and segmented ceramic friction discs
- Smooth engagement with excellent street drivability
- Ideal for high-performance street and track applications
- Diaphragm-style pressure plate provides light pedal effort
- Includes durable billet steel flywheel
- 125-tooth flywheel
- Designed for 1-1/8-inch, 26-spline transmission input shafts
- Includes installation hardware and alignment tool
Specifications
- Part Number: 6471207MD
- Horsepower Rating: 950 HP
- Clutch Disc Quantity: 2
- Disc Diameter: 9.688 inches
- Input Shaft Diameter: 1.125 inches
- Input Spline Quantity: 26
- Disc Material: Organic / Ceramic
- Disc Style: Full Face / Segmented
- Hub Style: Solid
- Pressure Plate Style: Diaphragm
- Clutch Usage: Performance
- Flywheel Included: Yes
- Flywheel Material: Billet Steel
- Engine Balance: Internal
- Ring Gear Tooth Quantity: 125
- Hardware Included: Yes
- Alignment Tool Included: Yes
- Throwout Bearing Included: No
- Pilot Bushing Included: No
Fitment
- Mazda 13B Rotary Engine Applications
- Mazda 20B Rotary Engine Applications
Additional Notes
- Designed for Mazda 13B and 20B rotary engine applications using aftermarket transmissions.
- Designed for transmissions utilizing a 1-1/8-inch, 26-spline input shaft.
- Includes a durable billet steel flywheel, installation hardware, and alignment tool.
- Throwout bearing and pilot bushing are not included and must be purchased separately if required.
- Ideal for high-horsepower rotary builds requiring exceptional torque capacity, smooth engagement, and long-lasting durability.
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